Automotive & Home Calculators

Work out tank volume in litres and gallons, allowing for substrate and decoration displacement.

Project a vehicle’s value year by year using a declining-balance rate and a salvage floor.

Estimate appliance running costs from wattage and usage.

Compare the cost of a home charge and a public charge after losses, with range added and cost per mile or kilometre.

Work out how much fertilizer to spread for a target nitrogen rate, based on the bag analysis.

Estimate trip fuel cost from distance, mileage, and price.

Estimate a move from distance, labour, packing, and supplies, with a cost per kilometre.

Estimate pond volume in cubic metres, litres, and gallons, with a shape factor for irregular ponds.

Solve for journey time, average speed, or distance, with the result shown as clock time and pace.

Compare two tire sizes by diameter, circumference, and the resulting speedometer error.

Budget fuel, tolls, parking, lodging, and food for a whole trip, then split the total per person.